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Math Help - cant get to the same expression as the solution..

  1. #1
    MHF Contributor
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    cant get to the same expression as the solution..


    i tried to solve it by myself but
    in my expression as you see i get a totally different expression when i do coefficient of exponent then the one in the solution
    did i do it correctly
    [CR_1+C\alpha \beta R_2]\frac{-\beta }{\tau }e^\frac{-t }{\tau }+Be^\frac{-t }{\tau }=V_0e^\frac{-t }{\tau }

    the alpha and beta dissapeared
    why?
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  2. #2
    MHF Contributor

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    I'm afraid I can't make heads or tails out of this. How is V_c^p related to V_C? And why does one have e^{\frac{t}{x}} while the other has e^{\frac{t}{\tau}}? If that is not a typo, where did "x" come from?
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  3. #3
    MHF Contributor
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    ok thats the formal solution

    look at my expression
    if i do the coefficients equation of the exponent then i will get the correct expression
    for B?
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